Home / 55,323.21-76,345.68-31,449.89

Finding the Fourth Proportional to 55,323.21, 76,345.68 and 31,449.89

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Solution

The fourth proportional to 55,323.21, 76,345.68 and 31,449.89 is: 43,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.21 : 76,345.68 = 31,449.89 : x
  2. Step 2: Convert to fraction form
    55,323.21/76,345.68 = 31,449.89/x
  3. Step 3: Cross multiply
    55,323.21x = 76,345.68 × 31,449.89
  4. Step 4: Simplify right side
    55,323.21x = 2,401,062,699.00
  5. Step 5: Solve for x
    x = 2,401,062,699.00/55,323.21
  6. Step 6: Final answer
    x = 43,400.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.